Home / 102,038.20-153,057.30-70,545.40

Finding the Fourth Proportional to 102,038.20, 153,057.30 and 70,545.40

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Solution

The fourth proportional to 102,038.20, 153,057.30 and 70,545.40 is: 105,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,038.20 : 153,057.30 = 70,545.40 : x
  2. Step 2: Convert to fraction form
    102,038.20/153,057.30 = 70,545.40/x
  3. Step 3: Cross multiply
    102,038.20x = 153,057.30 × 70,545.40
  4. Step 4: Simplify right side
    102,038.20x = 10,797,488,451.42
  5. Step 5: Solve for x
    x = 10,797,488,451.42/102,038.20
  6. Step 6: Final answer
    x = 105,818.10

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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.