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Finding the Fourth Proportional to 127,209, 175,539.51 and 70,615.92

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Solution

The fourth proportional to 127,209, 175,539.51 and 70,615.92 is: 97,445.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,209 : 175,539.51 = 70,615.92 : x
  2. Step 2: Convert to fraction form
    127,209/175,539.51 = 70,615.92/x
  3. Step 3: Cross multiply
    127,209x = 175,539.51 × 70,615.92
  4. Step 4: Simplify right side
    127,209x = 12,395,883,995.00
  5. Step 5: Solve for x
    x = 12,395,883,995.00/127,209
  6. Step 6: Final answer
    x = 97,445.02

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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.