Home / 130,748.91-180,427.80-72,602.04

Finding the Fourth Proportional to 130,748.91, 180,427.80 and 72,602.04

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Solution

The fourth proportional to 130,748.91, 180,427.80 and 72,602.04 is: 100,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,748.91 : 180,427.80 = 72,602.04 : x
  2. Step 2: Convert to fraction form
    130,748.91/180,427.80 = 72,602.04/x
  3. Step 3: Cross multiply
    130,748.91x = 180,427.80 × 72,602.04
  4. Step 4: Simplify right side
    130,748.91x = 13,099,426,352.71
  5. Step 5: Solve for x
    x = 13,099,426,352.71/130,748.91
  6. Step 6: Final answer
    x = 100,187.65

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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.