Home / 102,075.87-140,864.55-56,752.41

Finding the Fourth Proportional to 102,075.87, 140,864.55 and 56,752.41

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Solution

The fourth proportional to 102,075.87, 140,864.55 and 56,752.41 is: 78,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,075.87 : 140,864.55 = 56,752.41 : x
  2. Step 2: Convert to fraction form
    102,075.87/140,864.55 = 56,752.41/x
  3. Step 3: Cross multiply
    102,075.87x = 140,864.55 × 56,752.41
  4. Step 4: Simplify right side
    102,075.87x = 7,994,402,696.07
  5. Step 5: Solve for x
    x = 7,994,402,696.07/102,075.87
  6. Step 6: Final answer
    x = 78,318.24

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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.