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Finding the Fourth Proportional to 145,156, 217,578.48 and 60,894.94

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Solution

The fourth proportional to 145,156, 217,578.48 and 60,894.94 is: 91,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156 : 217,578.48 = 60,894.94 : x
  2. Step 2: Convert to fraction form
    145,156/217,578.48 = 60,894.94/x
  3. Step 3: Cross multiply
    145,156x = 217,578.48 × 60,894.94
  4. Step 4: Simplify right side
    145,156x = 13,249,428,484.89
  5. Step 5: Solve for x
    x = 13,249,428,484.89/145,156
  6. Step 6: Final answer
    x = 91,277.17

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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.