Home / 191,590.83-287,386.07-90,365.27

Finding the Fourth Proportional to 191,590.83, 287,386.07 and 90,365.27

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Solution

The fourth proportional to 191,590.83, 287,386.07 and 90,365.27 is: 135,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,590.83 : 287,386.07 = 90,365.27 : x
  2. Step 2: Convert to fraction form
    191,590.83/287,386.07 = 90,365.27/x
  3. Step 3: Cross multiply
    191,590.83x = 287,386.07 × 90,365.27
  4. Step 4: Simplify right side
    191,590.83x = 25,969,717,921.03
  5. Step 5: Solve for x
    x = 25,969,717,921.03/191,590.83
  6. Step 6: Final answer
    x = 135,547.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.