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Finding the Fourth Proportional to 153,451.29, 211,762.71 and 89,801.22

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Solution

The fourth proportional to 153,451.29, 211,762.71 and 89,801.22 is: 123,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,451.29 : 211,762.71 = 89,801.22 : x
  2. Step 2: Convert to fraction form
    153,451.29/211,762.71 = 89,801.22/x
  3. Step 3: Cross multiply
    153,451.29x = 211,762.71 × 89,801.22
  4. Step 4: Simplify right side
    153,451.29x = 19,016,549,708.51
  5. Step 5: Solve for x
    x = 19,016,549,708.51/153,451.29
  6. Step 6: Final answer
    x = 123,925.64

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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.