Home / 146,534.70-219,802.05-86,501.55

Finding the Fourth Proportional to 146,534.70, 219,802.05 and 86,501.55

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Solution

The fourth proportional to 146,534.70, 219,802.05 and 86,501.55 is: 129,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,534.70 : 219,802.05 = 86,501.55 : x
  2. Step 2: Convert to fraction form
    146,534.70/219,802.05 = 86,501.55/x
  3. Step 3: Cross multiply
    146,534.70x = 219,802.05 × 86,501.55
  4. Step 4: Simplify right side
    146,534.70x = 19,013,218,018.18
  5. Step 5: Solve for x
    x = 19,013,218,018.18/146,534.70
  6. Step 6: Final answer
    x = 129,752.33

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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.