Home / 145,526.08-200,824.16-81,864.32

Finding the Fourth Proportional to 145,526.08, 200,824.16 and 81,864.32

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Solution

The fourth proportional to 145,526.08, 200,824.16 and 81,864.32 is: 112,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,526.08 : 200,824.16 = 81,864.32 : x
  2. Step 2: Convert to fraction form
    145,526.08/200,824.16 = 81,864.32/x
  3. Step 3: Cross multiply
    145,526.08x = 200,824.16 × 81,864.32
  4. Step 4: Simplify right side
    145,526.08x = 16,440,333,297.97
  5. Step 5: Solve for x
    x = 16,440,333,297.97/145,526.08
  6. Step 6: Final answer
    x = 112,971.73

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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.