Home / 154,360.48-213,027.34-86,385.28

Finding the Fourth Proportional to 154,360.48, 213,027.34 and 86,385.28

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Solution

The fourth proportional to 154,360.48, 213,027.34 and 86,385.28 is: 119,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,360.48 : 213,027.34 = 86,385.28 : x
  2. Step 2: Convert to fraction form
    154,360.48/213,027.34 = 86,385.28/x
  3. Step 3: Cross multiply
    154,360.48x = 213,027.34 × 86,385.28
  4. Step 4: Simplify right side
    154,360.48x = 18,402,426,413.56
  5. Step 5: Solve for x
    x = 18,402,426,413.56/154,360.48
  6. Step 6: Final answer
    x = 119,217.21

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1.5x scale

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.