Home / 157,307.76-217,159.38-100,752.48

Finding the Fourth Proportional to 157,307.76, 217,159.38 and 100,752.48

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Solution

The fourth proportional to 157,307.76, 217,159.38 and 100,752.48 is: 139,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,307.76 : 217,159.38 = 100,752.48 : x
  2. Step 2: Convert to fraction form
    157,307.76/217,159.38 = 100,752.48/x
  3. Step 3: Cross multiply
    157,307.76x = 217,159.38 × 100,752.48
  4. Step 4: Simplify right side
    157,307.76x = 21,879,346,090.26
  5. Step 5: Solve for x
    x = 21,879,346,090.26/157,307.76
  6. Step 6: Final answer
    x = 139,086.25

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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.