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Finding the Fourth Proportional to 157,058.19, 216,820.57 and 121,167.63

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Solution

The fourth proportional to 157,058.19, 216,820.57 and 121,167.63 is: 167,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,058.19 : 216,820.57 = 121,167.63 : x
  2. Step 2: Convert to fraction form
    157,058.19/216,820.57 = 121,167.63/x
  3. Step 3: Cross multiply
    157,058.19x = 216,820.57 × 121,167.63
  4. Step 4: Simplify right side
    157,058.19x = 26,271,634,602.15
  5. Step 5: Solve for x
    x = 26,271,634,602.15/157,058.19
  6. Step 6: Final answer
    x = 167,273.25

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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.