Home / 454,054.36-681,079.65-138,510.22

Finding the Fourth Proportional to 454,054.36, 681,079.65 and 138,510.22

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Solution

The fourth proportional to 454,054.36, 681,079.65 and 138,510.22 is: 207,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,054.36 : 681,079.65 = 138,510.22 : x
  2. Step 2: Convert to fraction form
    454,054.36/681,079.65 = 138,510.22/x
  3. Step 3: Cross multiply
    454,054.36x = 681,079.65 × 138,510.22
  4. Step 4: Simplify right side
    454,054.36x = 94,336,492,159.02
  5. Step 5: Solve for x
    x = 94,336,492,159.02/454,054.36
  6. Step 6: Final answer
    x = 207,764.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.