Home / 160,035.81-240,204.39-81,206.61

Finding the Fourth Proportional to 160,035.81, 240,204.39 and 81,206.61

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Solution

The fourth proportional to 160,035.81, 240,204.39 and 81,206.61 is: 121,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,035.81 : 240,204.39 = 81,206.61 : x
  2. Step 2: Convert to fraction form
    160,035.81/240,204.39 = 81,206.61/x
  3. Step 3: Cross multiply
    160,035.81x = 240,204.39 × 81,206.61
  4. Step 4: Simplify right side
    160,035.81x = 19,506,184,219.02
  5. Step 5: Solve for x
    x = 19,506,184,219.02/160,035.81
  6. Step 6: Final answer
    x = 121,886.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.