Home / 142,713.12-197,038.80-133,792.32

Finding the Fourth Proportional to 142,713.12, 197,038.80 and 133,792.32

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Solution

The fourth proportional to 142,713.12, 197,038.80 and 133,792.32 is: 184,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.12 : 197,038.80 = 133,792.32 : x
  2. Step 2: Convert to fraction form
    142,713.12/197,038.80 = 133,792.32/x
  3. Step 3: Cross multiply
    142,713.12x = 197,038.80 × 133,792.32
  4. Step 4: Simplify right side
    142,713.12x = 26,362,278,182.02
  5. Step 5: Solve for x
    x = 26,362,278,182.02/142,713.12
  6. Step 6: Final answer
    x = 184,722.18

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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.