Home / 112,030.60-168,045.90-102,699.40

Finding the Fourth Proportional to 112,030.60, 168,045.90 and 102,699.40

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Solution

The fourth proportional to 112,030.60, 168,045.90 and 102,699.40 is: 154,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,030.60 : 168,045.90 = 102,699.40 : x
  2. Step 2: Convert to fraction form
    112,030.60/168,045.90 = 102,699.40/x
  3. Step 3: Cross multiply
    112,030.60x = 168,045.90 × 102,699.40
  4. Step 4: Simplify right side
    112,030.60x = 17,258,213,102.46
  5. Step 5: Solve for x
    x = 17,258,213,102.46/112,030.60
  6. Step 6: Final answer
    x = 154,049.10

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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.