Home / 145,235.14-200,443.28-81,572.93

Finding the Fourth Proportional to 145,235.14, 200,443.28 and 81,572.93

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Solution

The fourth proportional to 145,235.14, 200,443.28 and 81,572.93 is: 112,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,235.14 : 200,443.28 = 81,572.93 : x
  2. Step 2: Convert to fraction form
    145,235.14/200,443.28 = 81,572.93/x
  3. Step 3: Cross multiply
    145,235.14x = 200,443.28 × 81,572.93
  4. Step 4: Simplify right side
    145,235.14x = 16,350,745,648.41
  5. Step 5: Solve for x
    x = 16,350,745,648.41/145,235.14
  6. Step 6: Final answer
    x = 112,581.20

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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.