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Finding the Fourth Proportional to 152,375.78, 210,281.52 and 91,184.89

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Solution

The fourth proportional to 152,375.78, 210,281.52 and 91,184.89 is: 125,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,375.78 : 210,281.52 = 91,184.89 : x
  2. Step 2: Convert to fraction form
    152,375.78/210,281.52 = 91,184.89/x
  3. Step 3: Cross multiply
    152,375.78x = 210,281.52 × 91,184.89
  4. Step 4: Simplify right side
    152,375.78x = 19,174,496,967.84
  5. Step 5: Solve for x
    x = 19,174,496,967.84/152,375.78
  6. Step 6: Final answer
    x = 125,836.91

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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.