Home / 138,395.02-190,999.23-84,715.51

Finding the Fourth Proportional to 138,395.02, 190,999.23 and 84,715.51

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Solution

The fourth proportional to 138,395.02, 190,999.23 and 84,715.51 is: 116,916.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,395.02 : 190,999.23 = 84,715.51 : x
  2. Step 2: Convert to fraction form
    138,395.02/190,999.23 = 84,715.51/x
  3. Step 3: Cross multiply
    138,395.02x = 190,999.23 × 84,715.51
  4. Step 4: Simplify right side
    138,395.02x = 16,180,597,019.24
  5. Step 5: Solve for x
    x = 16,180,597,019.24/138,395.02
  6. Step 6: Final answer
    x = 116,916.04

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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.