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Finding the Fourth Proportional to 145,958.94, 201,491.19 and 85,521.15

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Solution

The fourth proportional to 145,958.94, 201,491.19 and 85,521.15 is: 118,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,958.94 : 201,491.19 = 85,521.15 : x
  2. Step 2: Convert to fraction form
    145,958.94/201,491.19 = 85,521.15/x
  3. Step 3: Cross multiply
    145,958.94x = 201,491.19 × 85,521.15
  4. Step 4: Simplify right side
    145,958.94x = 17,231,758,283.67
  5. Step 5: Solve for x
    x = 17,231,758,283.67/145,958.94
  6. Step 6: Final answer
    x = 118,058.94

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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.