Home / 112,822.53-155,688.37-64,430.16

Finding the Fourth Proportional to 112,822.53, 155,688.37 and 64,430.16

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Solution

The fourth proportional to 112,822.53, 155,688.37 and 64,430.16 is: 88,909.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.53 : 155,688.37 = 64,430.16 : x
  2. Step 2: Convert to fraction form
    112,822.53/155,688.37 = 64,430.16/x
  3. Step 3: Cross multiply
    112,822.53x = 155,688.37 × 64,430.16
  4. Step 4: Simplify right side
    112,822.53x = 10,031,026,589.24
  5. Step 5: Solve for x
    x = 10,031,026,589.24/112,822.53
  6. Step 6: Final answer
    x = 88,909.78

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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.