Home / 130,837.48-180,554.82-71,221.48

Finding the Fourth Proportional to 130,837.48, 180,554.82 and 71,221.48

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Solution

The fourth proportional to 130,837.48, 180,554.82 and 71,221.48 is: 98,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,837.48 : 180,554.82 = 71,221.48 : x
  2. Step 2: Convert to fraction form
    130,837.48/180,554.82 = 71,221.48/x
  3. Step 3: Cross multiply
    130,837.48x = 180,554.82 × 71,221.48
  4. Step 4: Simplify right side
    130,837.48x = 12,859,381,501.53
  5. Step 5: Solve for x
    x = 12,859,381,501.53/130,837.48
  6. Step 6: Final answer
    x = 98,285.15

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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.