Home / 154,248.71-231,044.94-91,000.67

Finding the Fourth Proportional to 154,248.71, 231,044.94 and 91,000.67

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Solution

The fourth proportional to 154,248.71, 231,044.94 and 91,000.67 is: 136,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,248.71 : 231,044.94 = 91,000.67 : x
  2. Step 2: Convert to fraction form
    154,248.71/231,044.94 = 91,000.67/x
  3. Step 3: Cross multiply
    154,248.71x = 231,044.94 × 91,000.67
  4. Step 4: Simplify right side
    154,248.71x = 21,025,243,184.89
  5. Step 5: Solve for x
    x = 21,025,243,184.89/154,248.71
  6. Step 6: Final answer
    x = 136,307.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.