Home / 100,026.72-138,071.64-57,602.16

Finding the Fourth Proportional to 100,026.72, 138,071.64 and 57,602.16

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Solution

The fourth proportional to 100,026.72, 138,071.64 and 57,602.16 is: 79,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,026.72 : 138,071.64 = 57,602.16 : x
  2. Step 2: Convert to fraction form
    100,026.72/138,071.64 = 57,602.16/x
  3. Step 3: Cross multiply
    100,026.72x = 138,071.64 × 57,602.16
  4. Step 4: Simplify right side
    100,026.72x = 7,953,224,698.74
  5. Step 5: Solve for x
    x = 7,953,224,698.74/100,026.72
  6. Step 6: Final answer
    x = 79,511.00

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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.