Home / 101,931.51-140,663.27-56,606.95

Finding the Fourth Proportional to 101,931.51, 140,663.27 and 56,606.95

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Solution

The fourth proportional to 101,931.51, 140,663.27 and 56,606.95 is: 78,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,931.51 : 140,663.27 = 56,606.95 : x
  2. Step 2: Convert to fraction form
    101,931.51/140,663.27 = 56,606.95/x
  3. Step 3: Cross multiply
    101,931.51x = 140,663.27 × 56,606.95
  4. Step 4: Simplify right side
    101,931.51x = 7,962,517,705.38
  5. Step 5: Solve for x
    x = 7,962,517,705.38/101,931.51
  6. Step 6: Final answer
    x = 78,116.35

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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.