Home / 112,289.42-154,959.03-61,988.06

Finding the Fourth Proportional to 112,289.42, 154,959.03 and 61,988.06

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Solution

The fourth proportional to 112,289.42, 154,959.03 and 61,988.06 is: 85,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,289.42 : 154,959.03 = 61,988.06 : x
  2. Step 2: Convert to fraction form
    112,289.42/154,959.03 = 61,988.06/x
  3. Step 3: Cross multiply
    112,289.42x = 154,959.03 × 61,988.06
  4. Step 4: Simplify right side
    112,289.42x = 9,605,609,649.18
  5. Step 5: Solve for x
    x = 9,605,609,649.18/112,289.42
  6. Step 6: Final answer
    x = 85,543.32

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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.