Home / 103,809.29-143,256.81-56,062.65

Finding the Fourth Proportional to 103,809.29, 143,256.81 and 56,062.65

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Solution

The fourth proportional to 103,809.29, 143,256.81 and 56,062.65 is: 77,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.29 : 143,256.81 = 56,062.65 : x
  2. Step 2: Convert to fraction form
    103,809.29/143,256.81 = 56,062.65/x
  3. Step 3: Cross multiply
    103,809.29x = 143,256.81 × 56,062.65
  4. Step 4: Simplify right side
    103,809.29x = 8,031,356,399.15
  5. Step 5: Solve for x
    x = 8,031,356,399.15/103,809.29
  6. Step 6: Final answer
    x = 77,366.46

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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.