Home / 147,030.07-202,870.14-86,578.64

Finding the Fourth Proportional to 147,030.07, 202,870.14 and 86,578.64

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Solution

The fourth proportional to 147,030.07, 202,870.14 and 86,578.64 is: 119,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,030.07 : 202,870.14 = 86,578.64 : x
  2. Step 2: Convert to fraction form
    147,030.07/202,870.14 = 86,578.64/x
  3. Step 3: Cross multiply
    147,030.07x = 202,870.14 × 86,578.64
  4. Step 4: Simplify right side
    147,030.07x = 17,564,220,817.81
  5. Step 5: Solve for x
    x = 17,564,220,817.81/147,030.07
  6. Step 6: Final answer
    x = 119,460.06

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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.