Home / 156,920.04-216,545.10-85,298.22

Finding the Fourth Proportional to 156,920.04, 216,545.10 and 85,298.22

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Solution

The fourth proportional to 156,920.04, 216,545.10 and 85,298.22 is: 117,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,920.04 : 216,545.10 = 85,298.22 : x
  2. Step 2: Convert to fraction form
    156,920.04/216,545.10 = 85,298.22/x
  3. Step 3: Cross multiply
    156,920.04x = 216,545.10 × 85,298.22
  4. Step 4: Simplify right side
    156,920.04x = 18,470,911,579.72
  5. Step 5: Solve for x
    x = 18,470,911,579.72/156,920.04
  6. Step 6: Final answer
    x = 117,709.07

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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.