Home / 207,918.09-286,927.11-112,424.76

Finding the Fourth Proportional to 207,918.09, 286,927.11 and 112,424.76

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Solution

The fourth proportional to 207,918.09, 286,927.11 and 112,424.76 is: 155,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918.09 : 286,927.11 = 112,424.76 : x
  2. Step 2: Convert to fraction form
    207,918.09/286,927.11 = 112,424.76/x
  3. Step 3: Cross multiply
    207,918.09x = 286,927.11 × 112,424.76
  4. Step 4: Simplify right side
    207,918.09x = 32,257,711,479.24
  5. Step 5: Solve for x
    x = 32,257,711,479.24/207,918.09
  6. Step 6: Final answer
    x = 155,146.25

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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.