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Finding the Fourth Proportional to 145,883.03, 218,923.02 and 57,125.45

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Solution

The fourth proportional to 145,883.03, 218,923.02 and 57,125.45 is: 85,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,883.03 : 218,923.02 = 57,125.45 : x
  2. Step 2: Convert to fraction form
    145,883.03/218,923.02 = 57,125.45/x
  3. Step 3: Cross multiply
    145,883.03x = 218,923.02 × 57,125.45
  4. Step 4: Simplify right side
    145,883.03x = 12,506,076,580.17
  5. Step 5: Solve for x
    x = 12,506,076,580.17/145,883.03
  6. Step 6: Final answer
    x = 85,726.74

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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.