Home / 160,437.28-221,406.09-87,838.96

Finding the Fourth Proportional to 160,437.28, 221,406.09 and 87,838.96

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Solution

The fourth proportional to 160,437.28, 221,406.09 and 87,838.96 is: 121,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,437.28 : 221,406.09 = 87,838.96 : x
  2. Step 2: Convert to fraction form
    160,437.28/221,406.09 = 87,838.96/x
  3. Step 3: Cross multiply
    160,437.28x = 221,406.09 × 87,838.96
  4. Step 4: Simplify right side
    160,437.28x = 19,448,080,683.27
  5. Step 5: Solve for x
    x = 19,448,080,683.27/160,437.28
  6. Step 6: Final answer
    x = 121,219.21

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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.