Home / 125,242.74-172,842.06-74,285.64

Finding the Fourth Proportional to 125,242.74, 172,842.06 and 74,285.64

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Solution

The fourth proportional to 125,242.74, 172,842.06 and 74,285.64 is: 102,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,242.74 : 172,842.06 = 74,285.64 : x
  2. Step 2: Convert to fraction form
    125,242.74/172,842.06 = 74,285.64/x
  3. Step 3: Cross multiply
    125,242.74x = 172,842.06 × 74,285.64
  4. Step 4: Simplify right side
    125,242.74x = 12,839,683,046.02
  5. Step 5: Solve for x
    x = 12,839,683,046.02/125,242.74
  6. Step 6: Final answer
    x = 102,518.38

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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.