Home / 152,140.50-209,950.02-84,160.26

Finding the Fourth Proportional to 152,140.50, 209,950.02 and 84,160.26

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Solution

The fourth proportional to 152,140.50, 209,950.02 and 84,160.26 is: 116,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,140.50 : 209,950.02 = 84,160.26 : x
  2. Step 2: Convert to fraction form
    152,140.50/209,950.02 = 84,160.26/x
  3. Step 3: Cross multiply
    152,140.50x = 209,950.02 × 84,160.26
  4. Step 4: Simplify right side
    152,140.50x = 17,669,448,270.21
  5. Step 5: Solve for x
    x = 17,669,448,270.21/152,140.50
  6. Step 6: Final answer
    x = 116,139.02

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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.