Home / 124,056.34-171,124.87-78,042.81

Finding the Fourth Proportional to 124,056.34, 171,124.87 and 78,042.81

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Solution

The fourth proportional to 124,056.34, 171,124.87 and 78,042.81 is: 107,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,056.34 : 171,124.87 = 78,042.81 : x
  2. Step 2: Convert to fraction form
    124,056.34/171,124.87 = 78,042.81/x
  3. Step 3: Cross multiply
    124,056.34x = 171,124.87 × 78,042.81
  4. Step 4: Simplify right side
    124,056.34x = 13,355,065,715.68
  5. Step 5: Solve for x
    x = 13,355,065,715.68/124,056.34
  6. Step 6: Final answer
    x = 107,653.23

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1.5x scale

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.