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Finding the Fourth Proportional to 154,015.52, 212,461.81 and 97,459.70

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Solution

The fourth proportional to 154,015.52, 212,461.81 and 97,459.70 is: 134,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,015.52 : 212,461.81 = 97,459.70 : x
  2. Step 2: Convert to fraction form
    154,015.52/212,461.81 = 97,459.70/x
  3. Step 3: Cross multiply
    154,015.52x = 212,461.81 × 97,459.70
  4. Step 4: Simplify right side
    154,015.52x = 20,706,463,776.76
  5. Step 5: Solve for x
    x = 20,706,463,776.76/154,015.52
  6. Step 6: Final answer
    x = 134,444.01

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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.