Home / 207,931.64-286,945.76-112,438.40

Finding the Fourth Proportional to 207,931.64, 286,945.76 and 112,438.40

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Solution

The fourth proportional to 207,931.64, 286,945.76 and 112,438.40 is: 155,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.64 : 286,945.76 = 112,438.40 : x
  2. Step 2: Convert to fraction form
    207,931.64/286,945.76 = 112,438.40/x
  3. Step 3: Cross multiply
    207,931.64x = 286,945.76 × 112,438.40
  4. Step 4: Simplify right side
    207,931.64x = 32,263,722,141.18
  5. Step 5: Solve for x
    x = 32,263,722,141.18/207,931.64
  6. Step 6: Final answer
    x = 155,165.04

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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.