Home / 112,353,982.80-168,656,945.40-86,907,800.40

Finding the Fourth Proportional to 112,353,982.80, 168,656,945.40 and 86,907,800.40

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Solution

The fourth proportional to 112,353,982.80, 168,656,945.40 and 86,907,800.40 is: 130,459,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,353,982.80 : 168,656,945.40 = 86,907,800.40 : x
  2. Step 2: Convert to fraction form
    112,353,982.80/168,656,945.40 = 86,907,800.40/x
  3. Step 3: Cross multiply
    112,353,982.80x = 168,656,945.40 × 86,907,800.40
  4. Step 4: Simplify right side
    112,353,982.80x = 14,657,604,146,896,900
  5. Step 5: Solve for x
    x = 14,657,604,146,896,900/112,353,982.80
  6. Step 6: Final answer
    x = 130,459,141.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.