Home / 153,851.95-212,118.32-126,154.56

Finding the Fourth Proportional to 153,851.95, 212,118.32 and 126,154.56

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Solution

The fourth proportional to 153,851.95, 212,118.32 and 126,154.56 is: 173,931.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,851.95 : 212,118.32 = 126,154.56 : x
  2. Step 2: Convert to fraction form
    153,851.95/212,118.32 = 126,154.56/x
  3. Step 3: Cross multiply
    153,851.95x = 212,118.32 × 126,154.56
  4. Step 4: Simplify right side
    153,851.95x = 26,759,693,720.90
  5. Step 5: Solve for x
    x = 26,759,693,720.90/153,851.95
  6. Step 6: Final answer
    x = 173,931.46

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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.