Home / 154,124.91-212,693.85-90,463.77

Finding the Fourth Proportional to 154,124.91, 212,693.85 and 90,463.77

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Solution

The fourth proportional to 154,124.91, 212,693.85 and 90,463.77 is: 124,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,124.91 : 212,693.85 = 90,463.77 : x
  2. Step 2: Convert to fraction form
    154,124.91/212,693.85 = 90,463.77/x
  3. Step 3: Cross multiply
    154,124.91x = 212,693.85 × 90,463.77
  4. Step 4: Simplify right side
    154,124.91x = 19,241,087,526.81
  5. Step 5: Solve for x
    x = 19,241,087,526.81/154,124.91
  6. Step 6: Final answer
    x = 124,840.87

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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.