Home / 88,307.02-121,908.82-68,118.58

Finding the Fourth Proportional to 88,307.02, 121,908.82 and 68,118.58

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Solution

The fourth proportional to 88,307.02, 121,908.82 and 68,118.58 is: 94,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,307.02 : 121,908.82 = 68,118.58 : x
  2. Step 2: Convert to fraction form
    88,307.02/121,908.82 = 68,118.58/x
  3. Step 3: Cross multiply
    88,307.02x = 121,908.82 × 68,118.58
  4. Step 4: Simplify right side
    88,307.02x = 8,304,255,707.88
  5. Step 5: Solve for x
    x = 8,304,255,707.88/88,307.02
  6. Step 6: Final answer
    x = 94,038.45

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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.