Home / 103,920.02-143,411.01-61,477.46

Finding the Fourth Proportional to 103,920.02, 143,411.01 and 61,477.46

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Solution

The fourth proportional to 103,920.02, 143,411.01 and 61,477.46 is: 84,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.02 : 143,411.01 = 61,477.46 : x
  2. Step 2: Convert to fraction form
    103,920.02/143,411.01 = 61,477.46/x
  3. Step 3: Cross multiply
    103,920.02x = 143,411.01 × 61,477.46
  4. Step 4: Simplify right side
    103,920.02x = 8,816,544,630.83
  5. Step 5: Solve for x
    x = 8,816,544,630.83/103,920.02
  6. Step 6: Final answer
    x = 84,839.71

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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.