Home / 151,513.04-209,088.48-91,118.48

Finding the Fourth Proportional to 151,513.04, 209,088.48 and 91,118.48

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Solution

The fourth proportional to 151,513.04, 209,088.48 and 91,118.48 is: 125,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,513.04 : 209,088.48 = 91,118.48 : x
  2. Step 2: Convert to fraction form
    151,513.04/209,088.48 = 91,118.48/x
  3. Step 3: Cross multiply
    151,513.04x = 209,088.48 × 91,118.48
  4. Step 4: Simplify right side
    151,513.04x = 19,051,824,483.11
  5. Step 5: Solve for x
    x = 19,051,824,483.11/151,513.04
  6. Step 6: Final answer
    x = 125,743.79

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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.