Home / 115,354.65-159,189.81-64,366.46

Finding the Fourth Proportional to 115,354.65, 159,189.81 and 64,366.46

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Solution

The fourth proportional to 115,354.65, 159,189.81 and 64,366.46 is: 88,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,354.65 : 159,189.81 = 64,366.46 : x
  2. Step 2: Convert to fraction form
    115,354.65/159,189.81 = 64,366.46/x
  3. Step 3: Cross multiply
    115,354.65x = 159,189.81 × 64,366.46
  4. Step 4: Simplify right side
    115,354.65x = 10,246,483,741.82
  5. Step 5: Solve for x
    x = 10,246,483,741.82/115,354.65
  6. Step 6: Final answer
    x = 88,825.93

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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.