Home / 151,357.08-208,654.59-105,894.21

Finding the Fourth Proportional to 151,357.08, 208,654.59 and 105,894.21

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Solution

The fourth proportional to 151,357.08, 208,654.59 and 105,894.21 is: 145,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,357.08 : 208,654.59 = 105,894.21 : x
  2. Step 2: Convert to fraction form
    151,357.08/208,654.59 = 105,894.21/x
  3. Step 3: Cross multiply
    151,357.08x = 208,654.59 × 105,894.21
  4. Step 4: Simplify right side
    151,357.08x = 22,095,312,970.92
  5. Step 5: Solve for x
    x = 22,095,312,970.92/151,357.08
  6. Step 6: Final answer
    x = 145,981.36

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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.