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Finding the Fourth Proportional to 112,363.70, 168,545.55 and 103,810.10

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Solution

The fourth proportional to 112,363.70, 168,545.55 and 103,810.10 is: 155,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,363.70 : 168,545.55 = 103,810.10 : x
  2. Step 2: Convert to fraction form
    112,363.70/168,545.55 = 103,810.10/x
  3. Step 3: Cross multiply
    112,363.70x = 168,545.55 × 103,810.10
  4. Step 4: Simplify right side
    112,363.70x = 17,496,730,400.06
  5. Step 5: Solve for x
    x = 17,496,730,400.06/112,363.70
  6. Step 6: Final answer
    x = 155,715.15

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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.