Home / 104,125.53-143,693.04-56,378.86

Finding the Fourth Proportional to 104,125.53, 143,693.04 and 56,378.86

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Solution

The fourth proportional to 104,125.53, 143,693.04 and 56,378.86 is: 77,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,125.53 : 143,693.04 = 56,378.86 : x
  2. Step 2: Convert to fraction form
    104,125.53/143,693.04 = 56,378.86/x
  3. Step 3: Cross multiply
    104,125.53x = 143,693.04 × 56,378.86
  4. Step 4: Simplify right side
    104,125.53x = 8,101,249,785.13
  5. Step 5: Solve for x
    x = 8,101,249,785.13/104,125.53
  6. Step 6: Final answer
    x = 77,802.72

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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.