Home / 157,973.65-218,007.01-86,360.33

Finding the Fourth Proportional to 157,973.65, 218,007.01 and 86,360.33

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Solution

The fourth proportional to 157,973.65, 218,007.01 and 86,360.33 is: 119,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,973.65 : 218,007.01 = 86,360.33 : x
  2. Step 2: Convert to fraction form
    157,973.65/218,007.01 = 86,360.33/x
  3. Step 3: Cross multiply
    157,973.65x = 218,007.01 × 86,360.33
  4. Step 4: Simplify right side
    157,973.65x = 18,827,157,978.88
  5. Step 5: Solve for x
    x = 18,827,157,978.88/157,973.65
  6. Step 6: Final answer
    x = 119,179.11

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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.