Home / 137,352.23-205,984.67-128,386.51

Finding the Fourth Proportional to 137,352.23, 205,984.67 and 128,386.51

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Solution

The fourth proportional to 137,352.23, 205,984.67 and 128,386.51 is: 192,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,352.23 : 205,984.67 = 128,386.51 : x
  2. Step 2: Convert to fraction form
    137,352.23/205,984.67 = 128,386.51/x
  3. Step 3: Cross multiply
    137,352.23x = 205,984.67 × 128,386.51
  4. Step 4: Simplify right side
    137,352.23x = 26,445,652,894.80
  5. Step 5: Solve for x
    x = 26,445,652,894.80/137,352.23
  6. Step 6: Final answer
    x = 192,538.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.