Home / 159,430.59-220,011.48-87,817.23

Finding the Fourth Proportional to 159,430.59, 220,011.48 and 87,817.23

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Solution

The fourth proportional to 159,430.59, 220,011.48 and 87,817.23 is: 121,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,430.59 : 220,011.48 = 87,817.23 : x
  2. Step 2: Convert to fraction form
    159,430.59/220,011.48 = 87,817.23/x
  3. Step 3: Cross multiply
    159,430.59x = 220,011.48 × 87,817.23
  4. Step 4: Simplify right side
    159,430.59x = 19,320,798,741.80
  5. Step 5: Solve for x
    x = 19,320,798,741.80/159,430.59
  6. Step 6: Final answer
    x = 121,186.27

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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.