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Finding the Fourth Proportional to 181,146.17, 249,970.15 and 100,573.67

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Solution

The fourth proportional to 181,146.17, 249,970.15 and 100,573.67 is: 138,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,146.17 : 249,970.15 = 100,573.67 : x
  2. Step 2: Convert to fraction form
    181,146.17/249,970.15 = 100,573.67/x
  3. Step 3: Cross multiply
    181,146.17x = 249,970.15 × 100,573.67
  4. Step 4: Simplify right side
    181,146.17x = 25,140,415,375.95
  5. Step 5: Solve for x
    x = 25,140,415,375.95/181,146.17
  6. Step 6: Final answer
    x = 138,785.24

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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.