Home / 104,685.40-144,458.74-56,937.72

Finding the Fourth Proportional to 104,685.40, 144,458.74 and 56,937.72

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Solution

The fourth proportional to 104,685.40, 144,458.74 and 56,937.72 is: 78,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,685.40 : 144,458.74 = 56,937.72 : x
  2. Step 2: Convert to fraction form
    104,685.40/144,458.74 = 56,937.72/x
  3. Step 3: Cross multiply
    104,685.40x = 144,458.74 × 56,937.72
  4. Step 4: Simplify right side
    104,685.40x = 8,225,151,147.33
  5. Step 5: Solve for x
    x = 8,225,151,147.33/104,685.40
  6. Step 6: Final answer
    x = 78,570.19

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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.