Home / 145,666.35-218,530.71-82,516.32

Finding the Fourth Proportional to 145,666.35, 218,530.71 and 82,516.32

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Solution

The fourth proportional to 145,666.35, 218,530.71 and 82,516.32 is: 123,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,666.35 : 218,530.71 = 82,516.32 : x
  2. Step 2: Convert to fraction form
    145,666.35/218,530.71 = 82,516.32/x
  3. Step 3: Cross multiply
    145,666.35x = 218,530.71 × 82,516.32
  4. Step 4: Simplify right side
    145,666.35x = 18,032,349,996.19
  5. Step 5: Solve for x
    x = 18,032,349,996.19/145,666.35
  6. Step 6: Final answer
    x = 123,792.15

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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.