Home / 101,437.87-139,988.38-56,115.07

Finding the Fourth Proportional to 101,437.87, 139,988.38 and 56,115.07

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Solution

The fourth proportional to 101,437.87, 139,988.38 and 56,115.07 is: 77,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,437.87 : 139,988.38 = 56,115.07 : x
  2. Step 2: Convert to fraction form
    101,437.87/139,988.38 = 56,115.07/x
  3. Step 3: Cross multiply
    101,437.87x = 139,988.38 × 56,115.07
  4. Step 4: Simplify right side
    101,437.87x = 7,855,456,762.37
  5. Step 5: Solve for x
    x = 7,855,456,762.37/101,437.87
  6. Step 6: Final answer
    x = 77,441.07

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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.