Home / 130,860.40-180,572.98-73,488.08

Finding the Fourth Proportional to 130,860.40, 180,572.98 and 73,488.08

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Solution

The fourth proportional to 130,860.40, 180,572.98 and 73,488.08 is: 101,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,860.40 : 180,572.98 = 73,488.08 : x
  2. Step 2: Convert to fraction form
    130,860.40/180,572.98 = 73,488.08/x
  3. Step 3: Cross multiply
    130,860.40x = 180,572.98 × 73,488.08
  4. Step 4: Simplify right side
    130,860.40x = 13,269,961,600.08
  5. Step 5: Solve for x
    x = 13,269,961,600.08/130,860.40
  6. Step 6: Final answer
    x = 101,405.48

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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.