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Finding the Fourth Proportional to 127,687.61, 176,208.80 and 70,327.32

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Solution

The fourth proportional to 127,687.61, 176,208.80 and 70,327.32 is: 97,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,687.61 : 176,208.80 = 70,327.32 : x
  2. Step 2: Convert to fraction form
    127,687.61/176,208.80 = 70,327.32/x
  3. Step 3: Cross multiply
    127,687.61x = 176,208.80 × 70,327.32
  4. Step 4: Simplify right side
    127,687.61x = 12,392,292,312.78
  5. Step 5: Solve for x
    x = 12,392,292,312.78/127,687.61
  6. Step 6: Final answer
    x = 97,051.65

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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.