Home / 109,434.84-151,048.77-71,299.05

Finding the Fourth Proportional to 109,434.84, 151,048.77 and 71,299.05

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Solution

The fourth proportional to 109,434.84, 151,048.77 and 71,299.05 is: 98,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,434.84 : 151,048.77 = 71,299.05 : x
  2. Step 2: Convert to fraction form
    109,434.84/151,048.77 = 71,299.05/x
  3. Step 3: Cross multiply
    109,434.84x = 151,048.77 × 71,299.05
  4. Step 4: Simplify right side
    109,434.84x = 10,769,633,804.67
  5. Step 5: Solve for x
    x = 10,769,633,804.67/109,434.84
  6. Step 6: Final answer
    x = 98,411.38

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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.