Home / 153,795.24-212,237.46-86,727.24

Finding the Fourth Proportional to 153,795.24, 212,237.46 and 86,727.24

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Solution

The fourth proportional to 153,795.24, 212,237.46 and 86,727.24 is: 119,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,795.24 : 212,237.46 = 86,727.24 : x
  2. Step 2: Convert to fraction form
    153,795.24/212,237.46 = 86,727.24/x
  3. Step 3: Cross multiply
    153,795.24x = 212,237.46 × 86,727.24
  4. Step 4: Simplify right side
    153,795.24x = 18,406,769,130.41
  5. Step 5: Solve for x
    x = 18,406,769,130.41/153,795.24
  6. Step 6: Final answer
    x = 119,683.61

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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.