Home / 123,502.08-170,430.64-69,785.94

Finding the Fourth Proportional to 123,502.08, 170,430.64 and 69,785.94

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Solution

The fourth proportional to 123,502.08, 170,430.64 and 69,785.94 is: 96,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.08 : 170,430.64 = 69,785.94 : x
  2. Step 2: Convert to fraction form
    123,502.08/170,430.64 = 69,785.94/x
  3. Step 3: Cross multiply
    123,502.08x = 170,430.64 × 69,785.94
  4. Step 4: Simplify right side
    123,502.08x = 11,893,662,417.20
  5. Step 5: Solve for x
    x = 11,893,662,417.20/123,502.08
  6. Step 6: Final answer
    x = 96,303.34

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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.