Home / 160,165.55-221,021.52-87,567.05

Finding the Fourth Proportional to 160,165.55, 221,021.52 and 87,567.05

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Solution

The fourth proportional to 160,165.55, 221,021.52 and 87,567.05 is: 120,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,165.55 : 221,021.52 = 87,567.05 : x
  2. Step 2: Convert to fraction form
    160,165.55/221,021.52 = 87,567.05/x
  3. Step 3: Cross multiply
    160,165.55x = 221,021.52 × 87,567.05
  4. Step 4: Simplify right side
    160,165.55x = 19,354,202,492.92
  5. Step 5: Solve for x
    x = 19,354,202,492.92/160,165.55
  6. Step 6: Final answer
    x = 120,838.74

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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.