Home / 132,720.56-183,194.40-90,303.70

Finding the Fourth Proportional to 132,720.56, 183,194.40 and 90,303.70

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Solution

The fourth proportional to 132,720.56, 183,194.40 and 90,303.70 is: 124,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.56 : 183,194.40 = 90,303.70 : x
  2. Step 2: Convert to fraction form
    132,720.56/183,194.40 = 90,303.70/x
  3. Step 3: Cross multiply
    132,720.56x = 183,194.40 × 90,303.70
  4. Step 4: Simplify right side
    132,720.56x = 16,543,132,363.42
  5. Step 5: Solve for x
    x = 16,543,132,363.42/132,720.56
  6. Step 6: Final answer
    x = 124,646.34

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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.