Home / 147,030.10-220,545.15-76,930.90

Finding the Fourth Proportional to 147,030.10, 220,545.15 and 76,930.90

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Solution

The fourth proportional to 147,030.10, 220,545.15 and 76,930.90 is: 115,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,030.10 : 220,545.15 = 76,930.90 : x
  2. Step 2: Convert to fraction form
    147,030.10/220,545.15 = 76,930.90/x
  3. Step 3: Cross multiply
    147,030.10x = 220,545.15 × 76,930.90
  4. Step 4: Simplify right side
    147,030.10x = 16,966,736,880.14
  5. Step 5: Solve for x
    x = 16,966,736,880.14/147,030.10
  6. Step 6: Final answer
    x = 115,396.35

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1.5x scale

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.