Home / 151,292.51-208,776.93-86,715.45

Finding the Fourth Proportional to 151,292.51, 208,776.93 and 86,715.45

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Solution

The fourth proportional to 151,292.51, 208,776.93 and 86,715.45 is: 119,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,292.51 : 208,776.93 = 86,715.45 : x
  2. Step 2: Convert to fraction form
    151,292.51/208,776.93 = 86,715.45/x
  3. Step 3: Cross multiply
    151,292.51x = 208,776.93 × 86,715.45
  4. Step 4: Simplify right side
    151,292.51x = 18,104,185,696.57
  5. Step 5: Solve for x
    x = 18,104,185,696.57/151,292.51
  6. Step 6: Final answer
    x = 119,663.46

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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.