Home / 172,026.81-257,577.71-140,306.00

Finding the Fourth Proportional to 172,026.81, 257,577.71 and 140,306.00

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Solution

The fourth proportional to 172,026.81, 257,577.71 and 140,306.00 is: 210,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,026.81 : 257,577.71 = 140,306.00 : x
  2. Step 2: Convert to fraction form
    172,026.81/257,577.71 = 140,306.00/x
  3. Step 3: Cross multiply
    172,026.81x = 257,577.71 × 140,306.00
  4. Step 4: Simplify right side
    172,026.81x = 36,139,696,189.84
  5. Step 5: Solve for x
    x = 36,139,696,189.84/172,026.81
  6. Step 6: Final answer
    x = 210,081.77

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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.