Home / 125,018.82-172,346.63-89,146.62

Finding the Fourth Proportional to 125,018.82, 172,346.63 and 89,146.62

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Solution

The fourth proportional to 125,018.82, 172,346.63 and 89,146.62 is: 122,894.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,018.82 : 172,346.63 = 89,146.62 : x
  2. Step 2: Convert to fraction form
    125,018.82/172,346.63 = 89,146.62/x
  3. Step 3: Cross multiply
    125,018.82x = 172,346.63 × 89,146.62
  4. Step 4: Simplify right side
    125,018.82x = 15,364,119,087.16
  5. Step 5: Solve for x
    x = 15,364,119,087.16/125,018.82
  6. Step 6: Final answer
    x = 122,894.45

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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.