Home / 130,856.50-180,584.40-74,271.52

Finding the Fourth Proportional to 130,856.50, 180,584.40 and 74,271.52

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Solution

The fourth proportional to 130,856.50, 180,584.40 and 74,271.52 is: 102,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,856.50 : 180,584.40 = 74,271.52 : x
  2. Step 2: Convert to fraction form
    130,856.50/180,584.40 = 74,271.52/x
  3. Step 3: Cross multiply
    130,856.50x = 180,584.40 × 74,271.52
  4. Step 4: Simplify right side
    130,856.50x = 13,412,277,876.29
  5. Step 5: Solve for x
    x = 13,412,277,876.29/130,856.50
  6. Step 6: Final answer
    x = 102,496.08

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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.