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Finding the Fourth Proportional to 145,598.92, 200,925.88 and 81,937.80

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Solution

The fourth proportional to 145,598.92, 200,925.88 and 81,937.80 is: 113,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,598.92 : 200,925.88 = 81,937.80 : x
  2. Step 2: Convert to fraction form
    145,598.92/200,925.88 = 81,937.80/x
  3. Step 3: Cross multiply
    145,598.92x = 200,925.88 × 81,937.80
  4. Step 4: Simplify right side
    145,598.92x = 16,463,424,570.26
  5. Step 5: Solve for x
    x = 16,463,424,570.26/145,598.92
  6. Step 6: Final answer
    x = 113,073.81

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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.