Home / 127,337.76-175,650.66-87,031.08

Finding the Fourth Proportional to 127,337.76, 175,650.66 and 87,031.08

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Solution

The fourth proportional to 127,337.76, 175,650.66 and 87,031.08 is: 120,051.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,337.76 : 175,650.66 = 87,031.08 : x
  2. Step 2: Convert to fraction form
    127,337.76/175,650.66 = 87,031.08/x
  3. Step 3: Cross multiply
    127,337.76x = 175,650.66 × 87,031.08
  4. Step 4: Simplify right side
    127,337.76x = 15,287,066,642.51
  5. Step 5: Solve for x
    x = 15,287,066,642.51/127,337.76
  6. Step 6: Final answer
    x = 120,051.32

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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.