Home / 160,655.16-221,705.88-89,036.52

Finding the Fourth Proportional to 160,655.16, 221,705.88 and 89,036.52

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Solution

The fourth proportional to 160,655.16, 221,705.88 and 89,036.52 is: 122,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,655.16 : 221,705.88 = 89,036.52 : x
  2. Step 2: Convert to fraction form
    160,655.16/221,705.88 = 89,036.52/x
  3. Step 3: Cross multiply
    160,655.16x = 221,705.88 × 89,036.52
  4. Step 4: Simplify right side
    160,655.16x = 19,739,920,018.74
  5. Step 5: Solve for x
    x = 19,739,920,018.74/160,655.16
  6. Step 6: Final answer
    x = 122,871.37

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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.