Home / 101,125.96-139,547.55-55,804.30

Finding the Fourth Proportional to 101,125.96, 139,547.55 and 55,804.30

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Solution

The fourth proportional to 101,125.96, 139,547.55 and 55,804.30 is: 77,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,125.96 : 139,547.55 = 55,804.30 : x
  2. Step 2: Convert to fraction form
    101,125.96/139,547.55 = 55,804.30/x
  3. Step 3: Cross multiply
    101,125.96x = 139,547.55 × 55,804.30
  4. Step 4: Simplify right side
    101,125.96x = 7,787,353,344.47
  5. Step 5: Solve for x
    x = 7,787,353,344.47/101,125.96
  6. Step 6: Final answer
    x = 77,006.47

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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.