Home / 101,011.43-139,393.19-55,688.35

Finding the Fourth Proportional to 101,011.43, 139,393.19 and 55,688.35

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Solution

The fourth proportional to 101,011.43, 139,393.19 and 55,688.35 is: 76,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,011.43 : 139,393.19 = 55,688.35 : x
  2. Step 2: Convert to fraction form
    101,011.43/139,393.19 = 55,688.35/x
  3. Step 3: Cross multiply
    101,011.43x = 139,393.19 × 55,688.35
  4. Step 4: Simplify right side
    101,011.43x = 7,762,576,543.07
  5. Step 5: Solve for x
    x = 7,762,576,543.07/101,011.43
  6. Step 6: Final answer
    x = 76,848.50

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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.