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Finding the Fourth Proportional to 152,425.96, 210,327.84 and 87,897.56

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Solution

The fourth proportional to 152,425.96, 210,327.84 and 87,897.56 is: 121,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,425.96 : 210,327.84 = 87,897.56 : x
  2. Step 2: Convert to fraction form
    152,425.96/210,327.84 = 87,897.56/x
  3. Step 3: Cross multiply
    152,425.96x = 210,327.84 × 87,897.56
  4. Step 4: Simplify right side
    152,425.96x = 18,487,303,936.07
  5. Step 5: Solve for x
    x = 18,487,303,936.07/152,425.96
  6. Step 6: Final answer
    x = 121,287.11

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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.