Home / 113,271.68-156,280.29-74,498.45

Finding the Fourth Proportional to 113,271.68, 156,280.29 and 74,498.45

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Solution

The fourth proportional to 113,271.68, 156,280.29 and 74,498.45 is: 102,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,271.68 : 156,280.29 = 74,498.45 : x
  2. Step 2: Convert to fraction form
    113,271.68/156,280.29 = 74,498.45/x
  3. Step 3: Cross multiply
    113,271.68x = 156,280.29 × 74,498.45
  4. Step 4: Simplify right side
    113,271.68x = 11,642,639,370.55
  5. Step 5: Solve for x
    x = 11,642,639,370.55/113,271.68
  6. Step 6: Final answer
    x = 102,785.09

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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.