Home / 207,972.37-287,001.86-112,479.06

Finding the Fourth Proportional to 207,972.37, 287,001.86 and 112,479.06

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Solution

The fourth proportional to 207,972.37, 287,001.86 and 112,479.06 is: 155,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.37 : 287,001.86 = 112,479.06 : x
  2. Step 2: Convert to fraction form
    207,972.37/287,001.86 = 112,479.06/x
  3. Step 3: Cross multiply
    207,972.37x = 287,001.86 × 112,479.06
  4. Step 4: Simplify right side
    207,972.37x = 32,281,699,431.05
  5. Step 5: Solve for x
    x = 32,281,699,431.05/207,972.37
  6. Step 6: Final answer
    x = 155,221.10

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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.