Home / 145,715.24-201,097.32-81,188.72

Finding the Fourth Proportional to 145,715.24, 201,097.32 and 81,188.72

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Solution

The fourth proportional to 145,715.24, 201,097.32 and 81,188.72 is: 112,046.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,715.24 : 201,097.32 = 81,188.72 : x
  2. Step 2: Convert to fraction form
    145,715.24/201,097.32 = 81,188.72/x
  3. Step 3: Cross multiply
    145,715.24x = 201,097.32 × 81,188.72
  4. Step 4: Simplify right side
    145,715.24x = 16,326,834,006.23
  5. Step 5: Solve for x
    x = 16,326,834,006.23/145,715.24
  6. Step 6: Final answer
    x = 112,046.17

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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.