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Finding the Fourth Proportional to 188,718.08, 260,430.95 and 103,835.14

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Solution

The fourth proportional to 188,718.08, 260,430.95 and 103,835.14 is: 143,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,718.08 : 260,430.95 = 103,835.14 : x
  2. Step 2: Convert to fraction form
    188,718.08/260,430.95 = 103,835.14/x
  3. Step 3: Cross multiply
    188,718.08x = 260,430.95 × 103,835.14
  4. Step 4: Simplify right side
    188,718.08x = 27,041,884,153.58
  5. Step 5: Solve for x
    x = 27,041,884,153.58/188,718.08
  6. Step 6: Final answer
    x = 143,292.49

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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.