Home / 113,079.06-156,030.90-65,338.74

Finding the Fourth Proportional to 113,079.06, 156,030.90 and 65,338.74

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Solution

The fourth proportional to 113,079.06, 156,030.90 and 65,338.74 is: 90,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,079.06 : 156,030.90 = 65,338.74 : x
  2. Step 2: Convert to fraction form
    113,079.06/156,030.90 = 65,338.74/x
  3. Step 3: Cross multiply
    113,079.06x = 156,030.90 × 65,338.74
  4. Step 4: Simplify right side
    113,079.06x = 10,194,862,407.07
  5. Step 5: Solve for x
    x = 10,194,862,407.07/113,079.06
  6. Step 6: Final answer
    x = 90,156.94

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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.