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Finding the Fourth Proportional to 145,666.98, 218,393.55 and 61,423.74

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Solution

The fourth proportional to 145,666.98, 218,393.55 and 61,423.74 is: 92,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,666.98 : 218,393.55 = 61,423.74 : x
  2. Step 2: Convert to fraction form
    145,666.98/218,393.55 = 61,423.74/x
  3. Step 3: Cross multiply
    145,666.98x = 218,393.55 × 61,423.74
  4. Step 4: Simplify right side
    145,666.98x = 13,414,548,632.88
  5. Step 5: Solve for x
    x = 13,414,548,632.88/145,666.98
  6. Step 6: Final answer
    x = 92,090.52

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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.