Home / 145,522.64-218,397.09-66,641.33

Finding the Fourth Proportional to 145,522.64, 218,397.09 and 66,641.33

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Solution

The fourth proportional to 145,522.64, 218,397.09 and 66,641.33 is: 100,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,522.64 : 218,397.09 = 66,641.33 : x
  2. Step 2: Convert to fraction form
    145,522.64/218,397.09 = 66,641.33/x
  3. Step 3: Cross multiply
    145,522.64x = 218,397.09 × 66,641.33
  4. Step 4: Simplify right side
    145,522.64x = 14,554,273,341.63
  5. Step 5: Solve for x
    x = 14,554,273,341.63/145,522.64
  6. Step 6: Final answer
    x = 100,013.81

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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.