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Finding the Fourth Proportional to 101,341.44, 139,900.08 and 67,406.40

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Solution

The fourth proportional to 101,341.44, 139,900.08 and 67,406.40 is: 93,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,341.44 : 139,900.08 = 67,406.40 : x
  2. Step 2: Convert to fraction form
    101,341.44/139,900.08 = 67,406.40/x
  3. Step 3: Cross multiply
    101,341.44x = 139,900.08 × 67,406.40
  4. Step 4: Simplify right side
    101,341.44x = 9,430,160,752.51
  5. Step 5: Solve for x
    x = 9,430,160,752.51/101,341.44
  6. Step 6: Final answer
    x = 93,053.35

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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.