Home / 130,150.72-179,612.16-72,008.36

Finding the Fourth Proportional to 130,150.72, 179,612.16 and 72,008.36

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Solution

The fourth proportional to 130,150.72, 179,612.16 and 72,008.36 is: 99,373.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,150.72 : 179,612.16 = 72,008.36 : x
  2. Step 2: Convert to fraction form
    130,150.72/179,612.16 = 72,008.36/x
  3. Step 3: Cross multiply
    130,150.72x = 179,612.16 × 72,008.36
  4. Step 4: Simplify right side
    130,150.72x = 12,933,577,077.66
  5. Step 5: Solve for x
    x = 12,933,577,077.66/130,150.72
  6. Step 6: Final answer
    x = 99,373.84

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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.