Home / 158,931.17-219,519.29-118,823.21

Finding the Fourth Proportional to 158,931.17, 219,519.29 and 118,823.21

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Solution

The fourth proportional to 158,931.17, 219,519.29 and 118,823.21 is: 164,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,931.17 : 219,519.29 = 118,823.21 : x
  2. Step 2: Convert to fraction form
    158,931.17/219,519.29 = 118,823.21/x
  3. Step 3: Cross multiply
    158,931.17x = 219,519.29 × 118,823.21
  4. Step 4: Simplify right side
    158,931.17x = 26,083,986,694.72
  5. Step 5: Solve for x
    x = 26,083,986,694.72/158,931.17
  6. Step 6: Final answer
    x = 164,121.28

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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.