Home / 146,430.71-219,567.13-78,998.90

Finding the Fourth Proportional to 146,430.71, 219,567.13 and 78,998.90

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Solution

The fourth proportional to 146,430.71, 219,567.13 and 78,998.90 is: 118,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,430.71 : 219,567.13 = 78,998.90 : x
  2. Step 2: Convert to fraction form
    146,430.71/219,567.13 = 78,998.90/x
  3. Step 3: Cross multiply
    146,430.71x = 219,567.13 × 78,998.90
  4. Step 4: Simplify right side
    146,430.71x = 17,345,561,746.16
  5. Step 5: Solve for x
    x = 17,345,561,746.16/146,430.71
  6. Step 6: Final answer
    x = 118,455.76

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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.