Home / 146,153.13-218,596.28-86,038.31

Finding the Fourth Proportional to 146,153.13, 218,596.28 and 86,038.31

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Solution

The fourth proportional to 146,153.13, 218,596.28 and 86,038.31 is: 128,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,153.13 : 218,596.28 = 86,038.31 : x
  2. Step 2: Convert to fraction form
    146,153.13/218,596.28 = 86,038.31/x
  3. Step 3: Cross multiply
    146,153.13x = 218,596.28 × 86,038.31
  4. Step 4: Simplify right side
    146,153.13x = 18,807,652,980.31
  5. Step 5: Solve for x
    x = 18,807,652,980.31/146,153.13
  6. Step 6: Final answer
    x = 128,684.57

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1.5x scale

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.