Home / 157,570.43-236,158.54-78,706.67

Finding the Fourth Proportional to 157,570.43, 236,158.54 and 78,706.67

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Solution

The fourth proportional to 157,570.43, 236,158.54 and 78,706.67 is: 117,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,570.43 : 236,158.54 = 78,706.67 : x
  2. Step 2: Convert to fraction form
    157,570.43/236,158.54 = 78,706.67/x
  3. Step 3: Cross multiply
    157,570.43x = 236,158.54 × 78,706.67
  4. Step 4: Simplify right side
    157,570.43x = 18,587,250,897.90
  5. Step 5: Solve for x
    x = 18,587,250,897.90/157,570.43
  6. Step 6: Final answer
    x = 117,961.55

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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.