Home / 162,165.12-223,788-90,545.04

Finding the Fourth Proportional to 162,165.12, 223,788 and 90,545.04

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Solution

The fourth proportional to 162,165.12, 223,788 and 90,545.04 is: 124,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,165.12 : 223,788 = 90,545.04 : x
  2. Step 2: Convert to fraction form
    162,165.12/223,788 = 90,545.04/x
  3. Step 3: Cross multiply
    162,165.12x = 223,788 × 90,545.04
  4. Step 4: Simplify right side
    162,165.12x = 20,262,893,411.52
  5. Step 5: Solve for x
    x = 20,262,893,411.52/162,165.12
  6. Step 6: Final answer
    x = 124,952.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.