Home / 101,125.65-139,547.49-55,803.51

Finding the Fourth Proportional to 101,125.65, 139,547.49 and 55,803.51

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Solution

The fourth proportional to 101,125.65, 139,547.49 and 55,803.51 is: 77,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,125.65 : 139,547.49 = 55,803.51 : x
  2. Step 2: Convert to fraction form
    101,125.65/139,547.49 = 55,803.51/x
  3. Step 3: Cross multiply
    101,125.65x = 139,547.49 × 55,803.51
  4. Step 4: Simplify right side
    101,125.65x = 7,787,239,753.69
  5. Step 5: Solve for x
    x = 7,787,239,753.69/101,125.65
  6. Step 6: Final answer
    x = 77,005.58

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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.