Home / 155,357.73-214,384.52-86,445.36

Finding the Fourth Proportional to 155,357.73, 214,384.52 and 86,445.36

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Solution

The fourth proportional to 155,357.73, 214,384.52 and 86,445.36 is: 119,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,357.73 : 214,384.52 = 86,445.36 : x
  2. Step 2: Convert to fraction form
    155,357.73/214,384.52 = 86,445.36/x
  3. Step 3: Cross multiply
    155,357.73x = 214,384.52 × 86,445.36
  4. Step 4: Simplify right side
    155,357.73x = 18,532,547,225.94
  5. Step 5: Solve for x
    x = 18,532,547,225.94/155,357.73
  6. Step 6: Final answer
    x = 119,289.51

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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.