Home / 119,035.42-164,276.16-78,679.21

Finding the Fourth Proportional to 119,035.42, 164,276.16 and 78,679.21

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Solution

The fourth proportional to 119,035.42, 164,276.16 and 78,679.21 is: 108,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,035.42 : 164,276.16 = 78,679.21 : x
  2. Step 2: Convert to fraction form
    119,035.42/164,276.16 = 78,679.21/x
  3. Step 3: Cross multiply
    119,035.42x = 164,276.16 × 78,679.21
  4. Step 4: Simplify right side
    119,035.42x = 12,925,118,490.63
  5. Step 5: Solve for x
    x = 12,925,118,490.63/119,035.42
  6. Step 6: Final answer
    x = 108,582.12

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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.