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Finding the Fourth Proportional to 84,437.34, 126,801.06 and 74,970.98

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Solution

The fourth proportional to 84,437.34, 126,801.06 and 74,970.98 is: 112,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,437.34 : 126,801.06 = 74,970.98 : x
  2. Step 2: Convert to fraction form
    84,437.34/126,801.06 = 74,970.98/x
  3. Step 3: Cross multiply
    84,437.34x = 126,801.06 × 74,970.98
  4. Step 4: Simplify right side
    84,437.34x = 9,506,399,099.23
  5. Step 5: Solve for x
    x = 9,506,399,099.23/84,437.34
  6. Step 6: Final answer
    x = 112,585.25

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1.5x scale

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.