Home / 145,326.68-200,549.04-81,675.24

Finding the Fourth Proportional to 145,326.68, 200,549.04 and 81,675.24

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Solution

The fourth proportional to 145,326.68, 200,549.04 and 81,675.24 is: 112,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,326.68 : 200,549.04 = 81,675.24 : x
  2. Step 2: Convert to fraction form
    145,326.68/200,549.04 = 81,675.24/x
  3. Step 3: Cross multiply
    145,326.68x = 200,549.04 × 81,675.24
  4. Step 4: Simplify right side
    145,326.68x = 16,379,890,973.77
  5. Step 5: Solve for x
    x = 16,379,890,973.77/145,326.68
  6. Step 6: Final answer
    x = 112,710.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.