Home / 108,921.51-150,303.60-61,182.81

Finding the Fourth Proportional to 108,921.51, 150,303.60 and 61,182.81

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Solution

The fourth proportional to 108,921.51, 150,303.60 and 61,182.81 is: 84,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,921.51 : 150,303.60 = 61,182.81 : x
  2. Step 2: Convert to fraction form
    108,921.51/150,303.60 = 61,182.81/x
  3. Step 3: Cross multiply
    108,921.51x = 150,303.60 × 61,182.81
  4. Step 4: Simplify right side
    108,921.51x = 9,195,996,601.12
  5. Step 5: Solve for x
    x = 9,195,996,601.12/108,921.51
  6. Step 6: Final answer
    x = 84,427.74

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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.