Home / 134,987.85-186,307.02-77,622.57

Finding the Fourth Proportional to 134,987.85, 186,307.02 and 77,622.57

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Solution

The fourth proportional to 134,987.85, 186,307.02 and 77,622.57 is: 107,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,987.85 : 186,307.02 = 77,622.57 : x
  2. Step 2: Convert to fraction form
    134,987.85/186,307.02 = 77,622.57/x
  3. Step 3: Cross multiply
    134,987.85x = 186,307.02 × 77,622.57
  4. Step 4: Simplify right side
    134,987.85x = 14,461,629,701.44
  5. Step 5: Solve for x
    x = 14,461,629,701.44/134,987.85
  6. Step 6: Final answer
    x = 107,132.82

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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.