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Finding the Fourth Proportional to 145,856.88, 218,822.22 and 40,675.86

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Solution

The fourth proportional to 145,856.88, 218,822.22 and 40,675.86 is: 61,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,856.88 : 218,822.22 = 40,675.86 : x
  2. Step 2: Convert to fraction form
    145,856.88/218,822.22 = 40,675.86/x
  3. Step 3: Cross multiply
    145,856.88x = 218,822.22 × 40,675.86
  4. Step 4: Simplify right side
    145,856.88x = 8,900,781,985.61
  5. Step 5: Solve for x
    x = 8,900,781,985.61/145,856.88
  6. Step 6: Final answer
    x = 61,024.08

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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.