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Finding the Fourth Proportional to 152,305.31, 210,153.84 and 87,762.89

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Solution

The fourth proportional to 152,305.31, 210,153.84 and 87,762.89 is: 121,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,305.31 : 210,153.84 = 87,762.89 : x
  2. Step 2: Convert to fraction form
    152,305.31/210,153.84 = 87,762.89/x
  3. Step 3: Cross multiply
    152,305.31x = 210,153.84 × 87,762.89
  4. Step 4: Simplify right side
    152,305.31x = 18,443,708,343.00
  5. Step 5: Solve for x
    x = 18,443,708,343.00/152,305.31
  6. Step 6: Final answer
    x = 121,096.95

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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.