Home / 102,077.45-140,858.87-56,752.65

Finding the Fourth Proportional to 102,077.45, 140,858.87 and 56,752.65

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Solution

The fourth proportional to 102,077.45, 140,858.87 and 56,752.65 is: 78,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,077.45 : 140,858.87 = 56,752.65 : x
  2. Step 2: Convert to fraction form
    102,077.45/140,858.87 = 56,752.65/x
  3. Step 3: Cross multiply
    102,077.45x = 140,858.87 × 56,752.65
  4. Step 4: Simplify right side
    102,077.45x = 7,994,113,864.74
  5. Step 5: Solve for x
    x = 7,994,113,864.74/102,077.45
  6. Step 6: Final answer
    x = 78,314.20

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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.