Home / 84,146.19-126,182.16-31,518.74

Finding the Fourth Proportional to 84,146.19, 126,182.16 and 31,518.74

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Solution

The fourth proportional to 84,146.19, 126,182.16 and 31,518.74 is: 47,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,146.19 : 126,182.16 = 31,518.74 : x
  2. Step 2: Convert to fraction form
    84,146.19/126,182.16 = 31,518.74/x
  3. Step 3: Cross multiply
    84,146.19x = 126,182.16 × 31,518.74
  4. Step 4: Simplify right side
    84,146.19x = 3,977,102,062.77
  5. Step 5: Solve for x
    x = 3,977,102,062.77/84,146.19
  6. Step 6: Final answer
    x = 47,264.20

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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.