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Finding the Fourth Proportional to 145,812.60, 218,718.90 and 101,345.40

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Solution

The fourth proportional to 145,812.60, 218,718.90 and 101,345.40 is: 152,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,812.60 : 218,718.90 = 101,345.40 : x
  2. Step 2: Convert to fraction form
    145,812.60/218,718.90 = 101,345.40/x
  3. Step 3: Cross multiply
    145,812.60x = 218,718.90 × 101,345.40
  4. Step 4: Simplify right side
    145,812.60x = 22,166,154,408.06
  5. Step 5: Solve for x
    x = 22,166,154,408.06/145,812.60
  6. Step 6: Final answer
    x = 152,018.10

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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.