Home / 159,157.34-219,637.05-87,542.18

Finding the Fourth Proportional to 159,157.34, 219,637.05 and 87,542.18

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Solution

The fourth proportional to 159,157.34, 219,637.05 and 87,542.18 is: 120,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,157.34 : 219,637.05 = 87,542.18 : x
  2. Step 2: Convert to fraction form
    159,157.34/219,637.05 = 87,542.18/x
  3. Step 3: Cross multiply
    159,157.34x = 219,637.05 × 87,542.18
  4. Step 4: Simplify right side
    159,157.34x = 19,227,506,165.77
  5. Step 5: Solve for x
    x = 19,227,506,165.77/159,157.34
  6. Step 6: Final answer
    x = 120,808.16

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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.