Home / 145,345.60-218,018.40-95,579.20

Finding the Fourth Proportional to 145,345.60, 218,018.40 and 95,579.20

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Solution

The fourth proportional to 145,345.60, 218,018.40 and 95,579.20 is: 143,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,345.60 : 218,018.40 = 95,579.20 : x
  2. Step 2: Convert to fraction form
    145,345.60/218,018.40 = 95,579.20/x
  3. Step 3: Cross multiply
    145,345.60x = 218,018.40 × 95,579.20
  4. Step 4: Simplify right side
    145,345.60x = 20,838,024,257.28
  5. Step 5: Solve for x
    x = 20,838,024,257.28/145,345.60
  6. Step 6: Final answer
    x = 143,368.80

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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.