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Finding the Fourth Proportional to 158,636.40, 237,487.08 and 138,953.40

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Solution

The fourth proportional to 158,636.40, 237,487.08 and 138,953.40 is: 208,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,636.40 : 237,487.08 = 138,953.40 : x
  2. Step 2: Convert to fraction form
    158,636.40/237,487.08 = 138,953.40/x
  3. Step 3: Cross multiply
    158,636.40x = 237,487.08 × 138,953.40
  4. Step 4: Simplify right side
    158,636.40x = 32,999,637,222.07
  5. Step 5: Solve for x
    x = 32,999,637,222.07/158,636.40
  6. Step 6: Final answer
    x = 208,020.59

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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.