Home / 157,186.86-235,782.72-87,509.04

Finding the Fourth Proportional to 157,186.86, 235,782.72 and 87,509.04

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Solution

The fourth proportional to 157,186.86, 235,782.72 and 87,509.04 is: 131,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,186.86 : 235,782.72 = 87,509.04 : x
  2. Step 2: Convert to fraction form
    157,186.86/235,782.72 = 87,509.04/x
  3. Step 3: Cross multiply
    157,186.86x = 235,782.72 × 87,509.04
  4. Step 4: Simplify right side
    157,186.86x = 20,633,119,475.79
  5. Step 5: Solve for x
    x = 20,633,119,475.79/157,186.86
  6. Step 6: Final answer
    x = 131,264.91

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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.