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Finding the Fourth Proportional to 145,729.69, 218,602.34 and 45,897.66

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Solution

The fourth proportional to 145,729.69, 218,602.34 and 45,897.66 is: 68,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,729.69 : 218,602.34 = 45,897.66 : x
  2. Step 2: Convert to fraction form
    145,729.69/218,602.34 = 45,897.66/x
  3. Step 3: Cross multiply
    145,729.69x = 218,602.34 × 45,897.66
  4. Step 4: Simplify right side
    145,729.69x = 10,033,335,876.52
  5. Step 5: Solve for x
    x = 10,033,335,876.52/145,729.69
  6. Step 6: Final answer
    x = 68,848.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.