Home / 152,109.61-209,912.66-84,123.07

Finding the Fourth Proportional to 152,109.61, 209,912.66 and 84,123.07

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Solution

The fourth proportional to 152,109.61, 209,912.66 and 84,123.07 is: 116,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,109.61 : 209,912.66 = 84,123.07 : x
  2. Step 2: Convert to fraction form
    152,109.61/209,912.66 = 84,123.07/x
  3. Step 3: Cross multiply
    152,109.61x = 209,912.66 × 84,123.07
  4. Step 4: Simplify right side
    152,109.61x = 17,658,496,970.45
  5. Step 5: Solve for x
    x = 17,658,496,970.45/152,109.61
  6. Step 6: Final answer
    x = 116,090.61

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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.