Home / 207,900.90-286,902.72-112,407.30

Finding the Fourth Proportional to 207,900.90, 286,902.72 and 112,407.30

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Solution

The fourth proportional to 207,900.90, 286,902.72 and 112,407.30 is: 155,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,900.90 : 286,902.72 = 112,407.30 : x
  2. Step 2: Convert to fraction form
    207,900.90/286,902.72 = 112,407.30/x
  3. Step 3: Cross multiply
    207,900.90x = 286,902.72 × 112,407.30
  4. Step 4: Simplify right side
    207,900.90x = 32,249,960,117.86
  5. Step 5: Solve for x
    x = 32,249,960,117.86/207,900.90
  6. Step 6: Final answer
    x = 155,121.79

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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.