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Finding the Fourth Proportional to 152,641.88, 210,646.96 and 84,655.04

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Solution

The fourth proportional to 152,641.88, 210,646.96 and 84,655.04 is: 116,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,641.88 : 210,646.96 = 84,655.04 : x
  2. Step 2: Convert to fraction form
    152,641.88/210,646.96 = 84,655.04/x
  3. Step 3: Cross multiply
    152,641.88x = 210,646.96 × 84,655.04
  4. Step 4: Simplify right side
    152,641.88x = 17,832,326,824.68
  5. Step 5: Solve for x
    x = 17,832,326,824.68/152,641.88
  6. Step 6: Final answer
    x = 116,824.60

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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.