Home / 112,354,638.80-168,657,929.40-86,908,456.40

Finding the Fourth Proportional to 112,354,638.80, 168,657,929.40 and 86,908,456.40

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Solution

The fourth proportional to 112,354,638.80, 168,657,929.40 and 86,908,456.40 is: 130,460,125.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,354,638.80 : 168,657,929.40 = 86,908,456.40 : x
  2. Step 2: Convert to fraction form
    112,354,638.80/168,657,929.40 = 86,908,456.40/x
  3. Step 3: Cross multiply
    112,354,638.80x = 168,657,929.40 × 86,908,456.40
  4. Step 4: Simplify right side
    112,354,638.80x = 14,657,800,303,774,180
  5. Step 5: Solve for x
    x = 14,657,800,303,774,180/112,354,638.80
  6. Step 6: Final answer
    x = 130,460,125.73

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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.