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Finding the Fourth Proportional to 145,897.91, 218,846.88 and 112,666.45

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Solution

The fourth proportional to 145,897.91, 218,846.88 and 112,666.45 is: 168,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,897.91 : 218,846.88 = 112,666.45 : x
  2. Step 2: Convert to fraction form
    145,897.91/218,846.88 = 112,666.45/x
  3. Step 3: Cross multiply
    145,897.91x = 218,846.88 × 112,666.45
  4. Step 4: Simplify right side
    145,897.91x = 24,656,699,405.61
  5. Step 5: Solve for x
    x = 24,656,699,405.61/145,897.91
  6. Step 6: Final answer
    x = 168,999.68

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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.