Home / 137,801.52-190,186.88-84,117.76

Finding the Fourth Proportional to 137,801.52, 190,186.88 and 84,117.76

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Solution

The fourth proportional to 137,801.52, 190,186.88 and 84,117.76 is: 116,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,801.52 : 190,186.88 = 84,117.76 : x
  2. Step 2: Convert to fraction form
    137,801.52/190,186.88 = 84,117.76/x
  3. Step 3: Cross multiply
    137,801.52x = 190,186.88 × 84,117.76
  4. Step 4: Simplify right side
    137,801.52x = 15,998,094,326.99
  5. Step 5: Solve for x
    x = 15,998,094,326.99/137,801.52
  6. Step 6: Final answer
    x = 116,095.19

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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.