Home / 160,163.55-221,018.76-87,565.05

Finding the Fourth Proportional to 160,163.55, 221,018.76 and 87,565.05

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Solution

The fourth proportional to 160,163.55, 221,018.76 and 87,565.05 is: 120,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,163.55 : 221,018.76 = 87,565.05 : x
  2. Step 2: Convert to fraction form
    160,163.55/221,018.76 = 87,565.05/x
  3. Step 3: Cross multiply
    160,163.55x = 221,018.76 × 87,565.05
  4. Step 4: Simplify right side
    160,163.55x = 19,353,518,770.34
  5. Step 5: Solve for x
    x = 19,353,518,770.34/160,163.55
  6. Step 6: Final answer
    x = 120,835.98

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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.