Home / 143,110.48-197,482.55-79,443.25

Finding the Fourth Proportional to 143,110.48, 197,482.55 and 79,443.25

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Solution

The fourth proportional to 143,110.48, 197,482.55 and 79,443.25 is: 109,626.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,110.48 : 197,482.55 = 79,443.25 : x
  2. Step 2: Convert to fraction form
    143,110.48/197,482.55 = 79,443.25/x
  3. Step 3: Cross multiply
    143,110.48x = 197,482.55 × 79,443.25
  4. Step 4: Simplify right side
    143,110.48x = 15,688,655,590.29
  5. Step 5: Solve for x
    x = 15,688,655,590.29/143,110.48
  6. Step 6: Final answer
    x = 109,626.18

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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.