Home / 103,300.06-142,555.20-57,362.74

Finding the Fourth Proportional to 103,300.06, 142,555.20 and 57,362.74

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Solution

The fourth proportional to 103,300.06, 142,555.20 and 57,362.74 is: 79,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,300.06 : 142,555.20 = 57,362.74 : x
  2. Step 2: Convert to fraction form
    103,300.06/142,555.20 = 57,362.74/x
  3. Step 3: Cross multiply
    103,300.06x = 142,555.20 × 57,362.74
  4. Step 4: Simplify right side
    103,300.06x = 8,177,356,873.25
  5. Step 5: Solve for x
    x = 8,177,356,873.25/103,300.06
  6. Step 6: Final answer
    x = 79,161.20

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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.