Home / 207,812.02-286,780.65-112,318.72

Finding the Fourth Proportional to 207,812.02, 286,780.65 and 112,318.72

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Solution

The fourth proportional to 207,812.02, 286,780.65 and 112,318.72 is: 154,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,812.02 : 286,780.65 = 112,318.72 : x
  2. Step 2: Convert to fraction form
    207,812.02/286,780.65 = 112,318.72/x
  3. Step 3: Cross multiply
    207,812.02x = 286,780.65 × 112,318.72
  4. Step 4: Simplify right side
    207,812.02x = 32,210,835,528.77
  5. Step 5: Solve for x
    x = 32,210,835,528.77/207,812.02
  6. Step 6: Final answer
    x = 154,999.87

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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.