Home / 147,120.49-203,041.25-86,710.62

Finding the Fourth Proportional to 147,120.49, 203,041.25 and 86,710.62

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Solution

The fourth proportional to 147,120.49, 203,041.25 and 86,710.62 is: 119,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,120.49 : 203,041.25 = 86,710.62 : x
  2. Step 2: Convert to fraction form
    147,120.49/203,041.25 = 86,710.62/x
  3. Step 3: Cross multiply
    147,120.49x = 203,041.25 × 86,710.62
  4. Step 4: Simplify right side
    147,120.49x = 17,605,832,673.08
  5. Step 5: Solve for x
    x = 17,605,832,673.08/147,120.49
  6. Step 6: Final answer
    x = 119,669.48

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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.