Home / 211,433.28-291,931.05-136,113

Finding the Fourth Proportional to 211,433.28, 291,931.05 and 136,113

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Solution

The fourth proportional to 211,433.28, 291,931.05 and 136,113 is: 187,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,433.28 : 291,931.05 = 136,113 : x
  2. Step 2: Convert to fraction form
    211,433.28/291,931.05 = 136,113/x
  3. Step 3: Cross multiply
    211,433.28x = 291,931.05 × 136,113
  4. Step 4: Simplify right side
    211,433.28x = 39,735,611,008.65
  5. Step 5: Solve for x
    x = 39,735,611,008.65/211,433.28
  6. Step 6: Final answer
    x = 187,934.52

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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.