Home / 139,872.48-193,026.18-76,210.26

Finding the Fourth Proportional to 139,872.48, 193,026.18 and 76,210.26

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Solution

The fourth proportional to 139,872.48, 193,026.18 and 76,210.26 is: 105,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,872.48 : 193,026.18 = 76,210.26 : x
  2. Step 2: Convert to fraction form
    139,872.48/193,026.18 = 76,210.26/x
  3. Step 3: Cross multiply
    139,872.48x = 193,026.18 × 76,210.26
  4. Step 4: Simplify right side
    139,872.48x = 14,710,575,364.61
  5. Step 5: Solve for x
    x = 14,710,575,364.61/139,872.48
  6. Step 6: Final answer
    x = 105,171.33

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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.