Home / 130,693.50-180,357.03-71,077.50

Finding the Fourth Proportional to 130,693.50, 180,357.03 and 71,077.50

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Solution

The fourth proportional to 130,693.50, 180,357.03 and 71,077.50 is: 98,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,693.50 : 180,357.03 = 71,077.50 : x
  2. Step 2: Convert to fraction form
    130,693.50/180,357.03 = 71,077.50/x
  3. Step 3: Cross multiply
    130,693.50x = 180,357.03 × 71,077.50
  4. Step 4: Simplify right side
    130,693.50x = 12,819,326,799.83
  5. Step 5: Solve for x
    x = 12,819,326,799.83/130,693.50
  6. Step 6: Final answer
    x = 98,086.95

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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.