Home / 142,364.55-196,509.75-99,933.51

Finding the Fourth Proportional to 142,364.55, 196,509.75 and 99,933.51

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Solution

The fourth proportional to 142,364.55, 196,509.75 and 99,933.51 is: 137,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,364.55 : 196,509.75 = 99,933.51 : x
  2. Step 2: Convert to fraction form
    142,364.55/196,509.75 = 99,933.51/x
  3. Step 3: Cross multiply
    142,364.55x = 196,509.75 × 99,933.51
  4. Step 4: Simplify right side
    142,364.55x = 19,637,909,066.72
  5. Step 5: Solve for x
    x = 19,637,909,066.72/142,364.55
  6. Step 6: Final answer
    x = 137,941.00

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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.