Home / 137,948.30-190,354.47-77,509.34

Finding the Fourth Proportional to 137,948.30, 190,354.47 and 77,509.34

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Solution

The fourth proportional to 137,948.30, 190,354.47 and 77,509.34 is: 106,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,948.30 : 190,354.47 = 77,509.34 : x
  2. Step 2: Convert to fraction form
    137,948.30/190,354.47 = 77,509.34/x
  3. Step 3: Cross multiply
    137,948.30x = 190,354.47 × 77,509.34
  4. Step 4: Simplify right side
    137,948.30x = 14,754,249,335.75
  5. Step 5: Solve for x
    x = 14,754,249,335.75/137,948.30
  6. Step 6: Final answer
    x = 106,954.92

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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.