Home / 207,899.18-286,901.28-112,405.88

Finding the Fourth Proportional to 207,899.18, 286,901.28 and 112,405.88

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Solution

The fourth proportional to 207,899.18, 286,901.28 and 112,405.88 is: 155,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,899.18 : 286,901.28 = 112,405.88 : x
  2. Step 2: Convert to fraction form
    207,899.18/286,901.28 = 112,405.88/x
  3. Step 3: Cross multiply
    207,899.18x = 286,901.28 × 112,405.88
  4. Step 4: Simplify right side
    207,899.18x = 32,249,390,851.53
  5. Step 5: Solve for x
    x = 32,249,390,851.53/207,899.18
  6. Step 6: Final answer
    x = 155,120.34

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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.