Home / 131,907.15-182,032.51-71,477.78

Finding the Fourth Proportional to 131,907.15, 182,032.51 and 71,477.78

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Solution

The fourth proportional to 131,907.15, 182,032.51 and 71,477.78 is: 98,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907.15 : 182,032.51 = 71,477.78 : x
  2. Step 2: Convert to fraction form
    131,907.15/182,032.51 = 71,477.78/x
  3. Step 3: Cross multiply
    131,907.15x = 182,032.51 × 71,477.78
  4. Step 4: Simplify right side
    131,907.15x = 13,011,279,702.63
  5. Step 5: Solve for x
    x = 13,011,279,702.63/131,907.15
  6. Step 6: Final answer
    x = 98,639.68

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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.