Home / 92,966.04-128,153.63-72,787.89

Finding the Fourth Proportional to 92,966.04, 128,153.63 and 72,787.89

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Solution

The fourth proportional to 92,966.04, 128,153.63 and 72,787.89 is: 100,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,966.04 : 128,153.63 = 72,787.89 : x
  2. Step 2: Convert to fraction form
    92,966.04/128,153.63 = 72,787.89/x
  3. Step 3: Cross multiply
    92,966.04x = 128,153.63 × 72,787.89
  4. Step 4: Simplify right side
    92,966.04x = 9,328,032,002.66
  5. Step 5: Solve for x
    x = 9,328,032,002.66/92,966.04
  6. Step 6: Final answer
    x = 100,338.06

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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.