Home / 123,948.48-171,048.40-70,243.72

Finding the Fourth Proportional to 123,948.48, 171,048.40 and 70,243.72

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Solution

The fourth proportional to 123,948.48, 171,048.40 and 70,243.72 is: 96,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,948.48 : 171,048.40 = 70,243.72 : x
  2. Step 2: Convert to fraction form
    123,948.48/171,048.40 = 70,243.72/x
  3. Step 3: Cross multiply
    123,948.48x = 171,048.40 × 70,243.72
  4. Step 4: Simplify right side
    123,948.48x = 12,015,075,916.05
  5. Step 5: Solve for x
    x = 12,015,075,916.05/123,948.48
  6. Step 6: Final answer
    x = 96,936.05

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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.