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Finding the Fourth Proportional to 127,341.49, 175,731.30 and 70,752.87

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Solution

The fourth proportional to 127,341.49, 175,731.30 and 70,752.87 is: 97,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,341.49 : 175,731.30 = 70,752.87 : x
  2. Step 2: Convert to fraction form
    127,341.49/175,731.30 = 70,752.87/x
  3. Step 3: Cross multiply
    127,341.49x = 175,731.30 × 70,752.87
  4. Step 4: Simplify right side
    127,341.49x = 12,433,493,130.59
  5. Step 5: Solve for x
    x = 12,433,493,130.59/127,341.49
  6. Step 6: Final answer
    x = 97,638.98

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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.