Home / 130,923.68-180,681.76-77,240.16

Finding the Fourth Proportional to 130,923.68, 180,681.76 and 77,240.16

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Solution

The fourth proportional to 130,923.68, 180,681.76 and 77,240.16 is: 106,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,923.68 : 180,681.76 = 77,240.16 : x
  2. Step 2: Convert to fraction form
    130,923.68/180,681.76 = 77,240.16/x
  3. Step 3: Cross multiply
    130,923.68x = 180,681.76 × 77,240.16
  4. Step 4: Simplify right side
    130,923.68x = 13,955,888,051.48
  5. Step 5: Solve for x
    x = 13,955,888,051.48/130,923.68
  6. Step 6: Final answer
    x = 106,595.60

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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.