Home / 150,312.85-207,431.28-84,894.51

Finding the Fourth Proportional to 150,312.85, 207,431.28 and 84,894.51

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Solution

The fourth proportional to 150,312.85, 207,431.28 and 84,894.51 is: 117,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,312.85 : 207,431.28 = 84,894.51 : x
  2. Step 2: Convert to fraction form
    150,312.85/207,431.28 = 84,894.51/x
  3. Step 3: Cross multiply
    150,312.85x = 207,431.28 × 84,894.51
  4. Step 4: Simplify right side
    150,312.85x = 17,609,776,874.27
  5. Step 5: Solve for x
    x = 17,609,776,874.27/150,312.85
  6. Step 6: Final answer
    x = 117,154.17

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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.