Home / 155,709.16-214,878.64-84,089.18

Finding the Fourth Proportional to 155,709.16, 214,878.64 and 84,089.18

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Solution

The fourth proportional to 155,709.16, 214,878.64 and 84,089.18 is: 116,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,709.16 : 214,878.64 = 84,089.18 : x
  2. Step 2: Convert to fraction form
    155,709.16/214,878.64 = 84,089.18/x
  3. Step 3: Cross multiply
    155,709.16x = 214,878.64 × 84,089.18
  4. Step 4: Simplify right side
    155,709.16x = 18,068,968,637.12
  5. Step 5: Solve for x
    x = 18,068,968,637.12/155,709.16
  6. Step 6: Final answer
    x = 116,043.07

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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.