Home / 112,684.34-168,777.36-77,061.24

Finding the Fourth Proportional to 112,684.34, 168,777.36 and 77,061.24

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Solution

The fourth proportional to 112,684.34, 168,777.36 and 77,061.24 is: 115,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,684.34 : 168,777.36 = 77,061.24 : x
  2. Step 2: Convert to fraction form
    112,684.34/168,777.36 = 77,061.24/x
  3. Step 3: Cross multiply
    112,684.34x = 168,777.36 × 77,061.24
  4. Step 4: Simplify right side
    112,684.34x = 13,006,192,645.53
  5. Step 5: Solve for x
    x = 13,006,192,645.53/112,684.34
  6. Step 6: Final answer
    x = 115,421.47

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1.5x scale

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.