Home / 159,015.90-219,400.47-102,510.30

Finding the Fourth Proportional to 159,015.90, 219,400.47 and 102,510.30

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Solution

The fourth proportional to 159,015.90, 219,400.47 and 102,510.30 is: 141,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,015.90 : 219,400.47 = 102,510.30 : x
  2. Step 2: Convert to fraction form
    159,015.90/219,400.47 = 102,510.30/x
  3. Step 3: Cross multiply
    159,015.90x = 219,400.47 × 102,510.30
  4. Step 4: Simplify right side
    159,015.90x = 22,490,807,999.84
  5. Step 5: Solve for x
    x = 22,490,807,999.84/159,015.90
  6. Step 6: Final answer
    x = 141,437.48

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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.