Home / 157,085.20-235,627.80-154,752.40

Finding the Fourth Proportional to 157,085.20, 235,627.80 and 154,752.40

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Solution

The fourth proportional to 157,085.20, 235,627.80 and 154,752.40 is: 232,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,085.20 : 235,627.80 = 154,752.40 : x
  2. Step 2: Convert to fraction form
    157,085.20/235,627.80 = 154,752.40/x
  3. Step 3: Cross multiply
    157,085.20x = 235,627.80 × 154,752.40
  4. Step 4: Simplify right side
    157,085.20x = 36,463,967,556.72
  5. Step 5: Solve for x
    x = 36,463,967,556.72/157,085.20
  6. Step 6: Final answer
    x = 232,128.60

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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.