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Finding the Fourth Proportional to 145,726.87, 218,598.10 and 45,894.83

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Solution

The fourth proportional to 145,726.87, 218,598.10 and 45,894.83 is: 68,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,726.87 : 218,598.10 = 45,894.83 : x
  2. Step 2: Convert to fraction form
    145,726.87/218,598.10 = 45,894.83/x
  3. Step 3: Cross multiply
    145,726.87x = 218,598.10 × 45,894.83
  4. Step 4: Simplify right side
    145,726.87x = 10,032,522,637.82
  5. Step 5: Solve for x
    x = 10,032,522,637.82/145,726.87
  6. Step 6: Final answer
    x = 68,844.70

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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.