Home / 112,637.88-155,496.38-64,881.90

Finding the Fourth Proportional to 112,637.88, 155,496.38 and 64,881.90

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Solution

The fourth proportional to 112,637.88, 155,496.38 and 64,881.90 is: 89,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,637.88 : 155,496.38 = 64,881.90 : x
  2. Step 2: Convert to fraction form
    112,637.88/155,496.38 = 64,881.90/x
  3. Step 3: Cross multiply
    112,637.88x = 155,496.38 × 64,881.90
  4. Step 4: Simplify right side
    112,637.88x = 10,088,900,253.11
  5. Step 5: Solve for x
    x = 10,088,900,253.11/112,637.88
  6. Step 6: Final answer
    x = 89,569.34

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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.