Home / 157,176.24-216,931.32-100,585.68

Finding the Fourth Proportional to 157,176.24, 216,931.32 and 100,585.68

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Solution

The fourth proportional to 157,176.24, 216,931.32 and 100,585.68 is: 138,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176.24 : 216,931.32 = 100,585.68 : x
  2. Step 2: Convert to fraction form
    157,176.24/216,931.32 = 100,585.68/x
  3. Step 3: Cross multiply
    157,176.24x = 216,931.32 × 100,585.68
  4. Step 4: Simplify right side
    157,176.24x = 21,820,184,335.50
  5. Step 5: Solve for x
    x = 21,820,184,335.50/157,176.24
  6. Step 6: Final answer
    x = 138,826.23

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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.