Home / 112,970.88-169,426.62-53,688.60

Finding the Fourth Proportional to 112,970.88, 169,426.62 and 53,688.60

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Solution

The fourth proportional to 112,970.88, 169,426.62 and 53,688.60 is: 80,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,970.88 : 169,426.62 = 53,688.60 : x
  2. Step 2: Convert to fraction form
    112,970.88/169,426.62 = 53,688.60/x
  3. Step 3: Cross multiply
    112,970.88x = 169,426.62 × 53,688.60
  4. Step 4: Simplify right side
    112,970.88x = 9,096,278,030.53
  5. Step 5: Solve for x
    x = 9,096,278,030.53/112,970.88
  6. Step 6: Final answer
    x = 80,518.79

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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.